CD54HC221F3A

Description：HIGH SPEEC CMOS LOGIC DUAL MONOS
Series：54HC
Mfr：Texas Instruments
Package：Tube

SKU:f0a11775d1d5 Category: Multivibrators Brand: Texas Instruments

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Product introduction

CD54HC221F3A is listed in the Multivibrators range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is HIGH SPEEC CMOS LOGIC DUAL MONOS. Review the specifications below when checking this part for your BOM.

Multivibrators specifications for CD54HC221F3A

Description：HIGH SPEEC CMOS LOGIC DUAL MONOS
Series：54HC
Mfr：Texas Instruments
Package：Tube
Logic Type：Monostable
Independent Circuits：2
Schmitt Trigger Input：Yes
Propagation Delay：18 ns
Current - Output High, Low：5.2mA, 5.2mA
Voltage - Supply：2 V ~ 6 V
Operating Temperature：-55°C ~ 125°C
Mounting Type：Through Hole
Package / Case：16-CDIP (0.300", 7.62mm)
Supplier Device Package：16-CDIP
Grade：-
Qualification：-

Multivibrators datasheet and documents for CD54HC221F3A

CD54HC221F3A

Multivibrators Overview

The CD54HC221F3A is a dual monostable multivibrator from the Texas Instruments 54HC series, housed in a 16-lead CERDIP package. It operates within a supply voltage range of 2V to 6V and supports an extended temperature range of -55°C to 125°C. The device features separate resets for each channel, Schmitt trigger inputs on B terminals, and buffered Q and Q outputs. Timing is controlled by external resistor (RX) and capacitor (CX) components, with pulse width calculated as tW = 0.7 RXCX at VCC = 4.5V.

Multivibrators Feature Summary

Dual independent monostable multivibrators with overriding reset functionality
Flexible triggering via leading or trailing edge inputs
Wide operating voltage range suitable for various logic families
Buffered complementary outputs for direct interface applications

Multivibrators Applications

Timing delay generation circuits
Pulse width modulation systems
Debouncing switches for digital logic inputs
Frequency division networks

Multivibrators Procurement Notes

Verify the complete part number including the F3A suffix to ensure correct military-grade ceramic packaging. Confirm RoHS exemption status if required for specific assembly processes. Check datasheet for absolute maximum ratings to prevent damage during handling or operation. Ensure proper ESD precautions are followed due to CMOS sensitivity.

Multivibrators Selection Notes

Select this component when military-grade reliability and wide temperature tolerance are required. The HC variant offers broader voltage flexibility compared to HCT types. Verify that external timing components meet minimum resistance and capacitance values specified in the datasheet. Consider power dissipation limits based on load capacitance and switching frequency.

Multivibrators Part Context

This device belongs to the Texas Instruments 54HC high-speed CMOS logic family. It is functionally similar to the commercial CD74HC221 but qualified for harsher environments. The 54-series designation indicates radiation-hardened or military-specification construction. It serves as a fundamental building block for sequential logic timing applications requiring precise pulse control.